Extension of the Phoenix/City of Colorado Springs Solar-Assisted Heat-Pump Project. Technical Progress Report No. 18, Sixth Quarterly Report, 1 October 1980-31 January 1981

摘要

Three gas-driven heat pumps are being considered, which are a Wisconsin engine drive heat pump, a Stirling engine drive heat pump, and a gas turbine drive heat pump. Also considered is an electric driven heat pump. Cost effectiveness of both the electric driven and gas fired solar-assisted heat pumps is demonstrated by comparing the present value of the system over its 20 year life with the present value of the fuel saved in Denver and Colorado Springs. The opinions of the local electric utilities for both cities and the natural gas pipeline company are briefly discussed. (ERA citation 07:049830)